Steve has for years been lavishing love and attention on the house like a hopelessly infatuated admirer.

After a little experimentation he came up with a beauty regime, which gives away his Greek origins. He mixes olive oil with a splash of methylated spirits to clean the bronze doors, railings and other fittings.

It's a recipe that was approved by the building's late designer Jorn Utzon. For the exposed concrete Steve uses baking soda to wipe away the city grime.

"For many years they tried different ways. They thought it was a joke to use olive oil," he said.

On the steps of the Opera House Steve is embraced by a tall and urbane, grey-haired man. Jan Utzon, architect and son of the man whose vision is realised before them, is well aware of Steve's life-long devotion to the building.

He's effusive in his praise for the Australian and hopes he can continue his work.

But Steve is now in his mid-60s and retirement is not far away.

Contemplating life away from the lady is difficult.

"I try to reject the word retirement because I feel emotional and I don't want it to come the time, never.

"If you marry the same year you start here and you're in love with two beautiful ladies it's not easy to leave one. Happy Birthday my darling, I love you."